Analysis

  • max time kernel
    166s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2022, 18:22

General

  • Target

    6e1bf603ae982bfeb8cff5300ec9777ea9762df70046f7ccd804ee0044913d76.exe

  • Size

    73KB

  • MD5

    01439904734ed3f2fa1adb618a4e7f33

  • SHA1

    5cd5cf36a5ece693b6be2c3d49acd1c0642cde12

  • SHA256

    6e1bf603ae982bfeb8cff5300ec9777ea9762df70046f7ccd804ee0044913d76

  • SHA512

    c7e59b362adaa50d114223bb389c9eb8393d16d6038447cabaaa26dd21578ece6edd7b27d3c35790fca8fc8a40ede73cd73eb823c00a6788e8d9f0735754b0fb

  • SSDEEP

    1536:4DOs+7c6+o2IzPMPzjk7XwrzwploGzRN0ISrT5GAV:QOsYcVo2IzPMPs7XwrzwpyGdNu5T

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 11 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:760
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:1008
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3444
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:3372
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            1⤵
              PID:3288
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
              1⤵
                PID:3088
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:600
                  • C:\Users\Admin\AppData\Local\Temp\6e1bf603ae982bfeb8cff5300ec9777ea9762df70046f7ccd804ee0044913d76.exe
                    "C:\Users\Admin\AppData\Local\Temp\6e1bf603ae982bfeb8cff5300ec9777ea9762df70046f7ccd804ee0044913d76.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • Windows security modification
                    • Checks whether UAC is enabled
                    • Enumerates connected drives
                    • Drops autorun.inf file
                    • Drops file in Program Files directory
                    • Drops file in Windows directory
                    • Modifies registry class
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:4516
                • C:\Windows\system32\taskhostw.exe
                  taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                  1⤵
                    PID:2872
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                    1⤵
                      PID:2820
                    • C:\Windows\system32\sihost.exe
                      sihost.exe
                      1⤵
                        PID:2780
                      • C:\Windows\system32\backgroundTaskHost.exe
                        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                        1⤵
                          PID:4720
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:4688
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3732
                            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                              1⤵
                                PID:3532
                              • C:\Windows\system32\fontdrvhost.exe
                                "fontdrvhost.exe"
                                1⤵
                                  PID:768
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:2508

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • memory/4516-132-0x0000000000400000-0x0000000000414000-memory.dmp

                                    Filesize

                                    80KB

                                  • memory/4516-133-0x0000000002180000-0x000000000320E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4516-134-0x0000000002180000-0x000000000320E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4516-135-0x0000000002180000-0x000000000320E000-memory.dmp

                                    Filesize

                                    16.6MB

                                  • memory/4516-136-0x0000000000400000-0x0000000000414000-memory.dmp

                                    Filesize

                                    80KB